From 9137087fe53d06af9b0a51aaad0ed183c099a0b1 Mon Sep 17 00:00:00 2001
From: Sineth Sankalpa <66241389+sinsankio@users.noreply.github.com>
Date: Thu, 27 Oct 2022 10:23:58 +0530
Subject: [PATCH 1/2] Add is_srilankan_phone_number.py

---
 strings/is_srilankan_phone_number.py | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 strings/is_srilankan_phone_number.py

diff --git a/strings/is_srilankan_phone_number.py b/strings/is_srilankan_phone_number.py
new file mode 100644
index 000000000000..7f1e131f74dc
--- /dev/null
+++ b/strings/is_srilankan_phone_number.py
@@ -0,0 +1,29 @@
+import re
+
+def is_sri_lankan_phone_number(phone: str) -> bool:
+    """
+    Determine whether the string is a valid sri lankan phone number or not
+    >>> is_sri_lankan_phone_number("+94475682163")
+    True
+    >>> is_sri_lankan_phone_number("+94773283048")
+    True
+    >>> is_sri_lankan_phone_number("0718382399")
+    True
+    >>> is_sri_lankan_phone_number("0094112343221")
+    True
+    >>> is_sri_lankan_phone_number("+94-3283048")
+    False
+    >>> is_sri_lankan_phone_number("07779209245")
+    False
+    >>> is_sri_lankan_phone_number("0957651234")
+    False
+    """
+
+    pattern = re.compile(r'^(?:0|94|\+94|0{2}94)?(?:(1{2}|21|23|24|25|26|27|31|32|3{2}|34|35|36|37|38|41|45|47|51|52|54|5{2}|57|63|65|6{2}|67|81|91)(0|2|3|4|5|7|9)|7(0|1|2|4|5|6|7|8)\d)\d{6}$')    
+    
+    return bool(re.search(pattern, phone))
+
+if __name__ == '__main__':
+    phone = "+94475682163"
+
+    print(is_sri_lankan_phone_number(phone))    

From 3c7fa226f85649822c860df605c1a23eeff94511 Mon Sep 17 00:00:00 2001
From: Sineth Sankalpa <66241389+sinsankio@users.noreply.github.com>
Date: Thu, 27 Oct 2022 11:17:04 +0530
Subject: [PATCH 2/2] Update is_srilankan_phone_number.py

---
 strings/is_srilankan_phone_number.py | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/strings/is_srilankan_phone_number.py b/strings/is_srilankan_phone_number.py
index 7f1e131f74dc..7bded93f7f1d 100644
--- a/strings/is_srilankan_phone_number.py
+++ b/strings/is_srilankan_phone_number.py
@@ -1,29 +1,35 @@
 import re
 
+
 def is_sri_lankan_phone_number(phone: str) -> bool:
     """
-    Determine whether the string is a valid sri lankan phone number or not
-    >>> is_sri_lankan_phone_number("+94475682163")
-    True
+    Determine whether the string is a valid sri lankan mobile phone number or not
+    References: https://aye.sh/blog/sri-lankan-phone-number-regex
+
     >>> is_sri_lankan_phone_number("+94773283048")
     True
+    >>> is_sri_lankan_phone_number("+9477-3283048")
+    True
     >>> is_sri_lankan_phone_number("0718382399")
     True
-    >>> is_sri_lankan_phone_number("0094112343221")
+    >>> is_sri_lankan_phone_number("0094702343221")
+    True
+    >>> is_sri_lankan_phone_number("075 3201568")
     True
-    >>> is_sri_lankan_phone_number("+94-3283048")
-    False
     >>> is_sri_lankan_phone_number("07779209245")
     False
     >>> is_sri_lankan_phone_number("0957651234")
     False
     """
 
-    pattern = re.compile(r'^(?:0|94|\+94|0{2}94)?(?:(1{2}|21|23|24|25|26|27|31|32|3{2}|34|35|36|37|38|41|45|47|51|52|54|5{2}|57|63|65|6{2}|67|81|91)(0|2|3|4|5|7|9)|7(0|1|2|4|5|6|7|8)\d)\d{6}$')    
-    
+    pattern = re.compile(
+        r"^(?:0|94|\+94|0{2}94)" r"7(0|1|2|4|5|6|7|8)" r"(-| |)" r"\d{7}$"
+    )
+
     return bool(re.search(pattern, phone))
 
-if __name__ == '__main__':
-    phone = "+94475682163"
 
-    print(is_sri_lankan_phone_number(phone))    
+if __name__ == "__main__":
+    phone = "0094702343221"
+
+    print(is_sri_lankan_phone_number(phone))